Insect Body Parts And Their Functions

The amazing world of insects

The insect world is so fascinating that it is mind-blowing. When you think of the many insects there are to humans it can leave you scratching your head. It is estimated that there are 10 quintillion insects on our planet now that’s a lot of insects that outnumber the human race by far and what is even more interesting is that many of these insects are so diverse.

There are some insects known as good bugs or beneficial insects that assist us in protecting our gardens and landscape. What that means is these insects feed on other insects that are known as the bad bugs which feed on and destroys our garden plants.

Here is a list of the good, the bad and the ugly, just kidding if there where such bugs as the ugly I would love to see how they looked even though we have some really ugly ones.

Good bugs or Beneficial insects

Ladybirds

Praying mantis

Happy Bee

Butterflies

Bees

Mealybug destroyer

Assassin bug

Damsel bugs

Green lacewing

Minute pirate bug

Bad bugs or garden insects pest

Mealybugs

Slugs and snail

Bad Bug

Scales

Thrip

Whiteflies

Aphids

Caterpillars

Ants

Spider mites

Insect Body Parts And Their Functions

Insects are really amazing but the reason they can do what they do is that of their body parts and the functions they are allowed to so here are the names and functions of their body parts

The antennae– Can be found on top of the insect’s head. The job of the antennae is for the sense of touch or to detect odors.

The head– The insects head make up the first part of the insect’s segmented body. The head of insects species is of different form and size.

The Eyes of insects– some insects have eyes know as simple eyes. These eyes appear as small swellings. Insects can have 2-3 simple eyes which are used in the detection of light. Example of this insects is dragonflies.

Insects with compound eyes have several eyes, each eye contains a cone, lens, visual cells and pigment cells that are sensitive to light. And insects eyes that are compound contains thousands of ommatidia that collect information then transferred this information to the insect’s brain. The details of this information are determined by the image that is affected by the number of ommatidia that is in the eyes of some insects.

Colors such as blue, ultra-violet light and green-yellow are brought about by the ommatidia that contain pigments.

Mouthparts– The mouth of insect differs, some insects have piercing-sucking mouthparts that are like a hypodermic needle. Example of these insects are thrips, whiteflies, and mealybugs. These insects pierce the leaves and suck the plant juice. Some insects like thrips have been known to transfer virus in this way because their saliva is toxic to plants

Bee eating pancakes with honey

Then you have the chewing insects that feed on garden plants by eating the leaves and in some case the stems of succulents. Grasshoppers and beetles fall into this category.

Siphoning-next, there are insects that have tounges that are shaped like coils. These coil like tongue reaches into the flowers of plants and suck the nectar. In this group, you have the butterfly and bee.

Sponging insects such as the housefly secrets saliva over the surface of the food, as the food is being dissolved by the fly’s saliva the liquefied food is drawn up into its mouth.

Thorax– The thorax is the middle or mid-section of the insect. The thorax holds the wings, head, abdomen, and legs of an insect.

Wings– The insect’s wings are responsible for helping the insect to take flight as a means of protection also reaching high up places to feed. Insects that reach adulthood has 2 pairs of wings except for flies that have 1 pair.

The wings of some insects have scales or fine hairs. Also, some insects have hard or leathery wings while some are membranous.

Legs– Adult insects have 6 legs. These legs are designed for running, climbing, jumping or walking. Each segment of the thorax bears 1 pair of legs.

The abdomen– The insect’s abdomen is located behind the thorax this is the third part of the insect. The abdomen contains the insect’s genitalia.

Insect body parts and their functions

The final word

We can do a more in-depth study of parts of and insects but this is just to give you an idea of the many insects that are found in your garden. The insect world is so vast and their anatomy is really amazing so the next time you’re in your garden stop and take a look at these insects as they move about in their world whether they are the good or the bad guys.

4 comments

Hi Norman and I’m so glad I happened upon your site! As a kid growing up, I was so fascinated by insects, my parents bought me an insect book. I studied it from cover to cover and even started a bug club with some of the neighborhood children. Ha ha! I love the way you group the various insects together by what roles they play in nature. This is a very informative and interesting site! Thank you for providing it!

Hello my good friend so good to see you and I am so happy that I could help. The insect world is truly amazing. Thanks so much for sharing some of your childhood memories with me. All the best of success and have a good day.